I'd like to parrot wyardley and apache's comments. I honestly think 90% of puerh drinkers go through this. The other 10% are just better liars.
When I first began drinking puerh, only Yunnan Sourcing and Hou De offered samples. Hou De's cakes were too pricey for me, so I didn't buy their samples. Honestly, I didn't take advantage of YS's samples in the beginning either because I just liked the
idea of owning cakes. As a result, (and as Apache put it) it was like betting on horses. Some great, some good, some bad, and some hilariously bad. That can actually be quite a fun journey in itself. It it a much more expensive way to do it, but whatever.
These days, I sample in rather copious amounts and buy what I like. I also think that I have enough of the larger factory (Menghai and Xiaguan) stuff, that I tend to focus on more "boutique" cakes (i.e. Nada's) or particular regions that I'm more drawn to. This way I have cakes that I enjoy both now and (hopefully) later.